Dictionary of Medieval Names
from European Sources

Bert m. Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz used as a standalone name, or a diminutive of any of various names using this element as a prototheme or deuterotheme.

Austria
Latin
776 Pirhtilo (nom) FRA-XXXL 4; 930 Pirhtilo (nom) UrkStyria 19
France
Latin
697 Bertino (abl) DCEL-2 Add. IX; 699 Bertino (abl) Chart7th p. 570; c823 Bertingus (nom) irminon-vol2 67, Ved; 1147 Bertini (gen) clairvaux-12thc 15, Bertino (abl) ibid. 15; 1179 Bertinus (nom) ibid. 180; 1180 Bertini (gen) RotScaNor p. 34; 1364 Bertini (gen) ActsCharlesV no. 87A; 1378 Berteto (dat) hanquetvol1 2288
Old French
1296 Bertin paris1296 p. 37; 1301 Bertin (obl) MemPic-vol17 p. 290; 1313 Bertin Paris1313 p. 22
Middle French
1438 Bertin favier 254; 1563 Bertin RegPCC-1 p. 533; 1588 Bertin raymond1588 p. 566
Italy
Latin
1285 Berti (gen) Perugia1285 p. 154; 1366 Berti (gen) Livi 52; 1367 Berti (gen) ibid. 149; 1370 Berti (gen) ibid. 265; 1521 Berti (gen) VitAs2 III
1369 Bertini (gen) Livi 251
Italian
1429–1430 Berto DiaryLMA p. 247
1513x1521 Bertino LeoX p. 25
Cite as: J. Pepe, S.L. Uckelman. "Bert". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2020, no. 1. http://dmnes.org/2020/1/name/Bert.